Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-10 22:21:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

Bluetooth: hci_bcm4377: do not mark valid bd_addr as invalid

Browse Source 
A recent commit restored the original (and still documented) semantics
for the HCI_QUIRK_USE_BDADDR_PROPERTY quirk so that the device address
is considered invalid unless an address is provided by firmware.

This specifically means that this flag must only be set for devices with
invalid addresses, but the Broadcom BCM4377 driver has so far been
setting this flag unconditionally.

Fortunately the driver already checks for invalid addresses during setup
and sets the HCI_QUIRK_INVALID_BDADDR flag, which can simply be replaced
with HCI_QUIRK_USE_BDADDR_PROPERTY to indicate that the default address
is invalid but can be overridden by firmware (long term, this should
probably just always be allowed).

Fixes: 6945795bc8 ("Bluetooth: fix use-bdaddr-property quirk")
Cc: stable@vger.kernel.org      # 6.5
Reported-by: Felix Zhang <mrman@mrman314.tech>
Link: https://lore.kernel.org/r/77419ffacc5b4875e920e038332575a2a5bff29f.camel@mrman314.tech/
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reported-by: Felix Zhang <mrman@mrman314.tech>
Reviewed-by: Neal Gompa <neal@gompa.dev>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Johan Hovold 2023-12-27 11:10:03 +01:00 committed by Luiz Augusto von Dentz
parent 4adfc94d4a
commit c17d2a7b21
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/bluetooth/hci_bcm4377.c
View File

@ -1417,7 +1417,7 @@ static int bcm4377_check_bdaddr(struct bcm4377_data *bcm4377)
bda = (struct hci_rp_read_bd_addr *)skb->data;
if (!bcm4377_is_valid_bdaddr(bcm4377, &bda->bdaddr))
set_bit(HCI_QUIRK_INVALID_BDADDR, &bcm4377->hdev->quirks);
set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &bcm4377->hdev->quirks);
kfree_skb(skb);
return 0;
@ -2368,7 +2368,6 @@ static int bcm4377_probe(struct pci_dev *pdev, const struct pci_device_id *id)
hdev->set_bdaddr = bcm4377_hci_set_bdaddr;
hdev->setup = bcm4377_hci_setup;
set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
if (bcm4377->hw->broken_mws_transport_config)
set_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &hdev->quirks);
if (bcm4377->hw->broken_ext_scan)